Charles w



(No Model.)

0. W. JONES. SPINDLE'DRIVING BAND TENSION REGULATING DEVIOE FOR SPINNING MACHINES.

No. 427,425. Patented May 6,1890.

r01 an /250 F/BEA UNITED STATES PATENT OFFICE.

CHARLES IV. JONES, OF LONDON, ONTARIO, CANADA.

SPlNDLE-DRIVING BAND TENSION-REGULATING DEVICE FOR SPINNING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 427,425, dated May 6, 1890.

Application filed October 81, 1889. Serial No. 828,775. (No model-) To aZZ whom, it may concern:

Be it known that I, CHARLES W. JONES, a citizen of the United States, residing at London, Ontario, Canada, have invented certain new and useful Improvements in Spindle- Driving Band Tension-Regulating Devices for Spinning-Machines, of which the following is a specification.

My invention relates to spinning machinery; and it consists in a novel device for taking up the slack and maintaining a uniform tension on the driving band or bands. These bands vary in length, according to the hygrometric condition of the atmosphere, and cause an uneven twist in the thread and the bobbins to wind unevenly; but this is overcome by the device hereinafter set forth and claimed, which maintains the required tension on the band, thereby causing the spindies to rotate uniformly and the yarn to twist and wind evenly.

In the drawings, Figure 1 is a perspective view of my improved tension device; Fig. 2, a sectional view taken through the springdrum, and Fig. 3 a detail view.

In carrying out my invention the spindles may be handed in any desired manner and the tension device applied either to a special 100p extending from the drum or to the return-line extending from the end spindles or from guide-pulleys at the ends of the frame, as may be preferred.

A indicates a supporting bar or rod, which may be arranged in either an inclined or horizontal position, the bar being preferably made of a single casting, T-shaped in crosssection and provided at its ends with eyes a, by which it may be secured in position.

B indicates a block mounted upon the inner end of the bar and provided with apoint or spurb, which may be driven into'the Woodwork of the machine to which the device is applied, the spur or point I? being used either in connection with the eye a or as a substitute for the latter. A bi11ding-screw 0, carried by the block B and adapted to bear upon the bar A, will hold the block in its adjusted positions. A bent arm (Z is formed upon the side of the block to receive the axle or journal of a small grooved wheel 6, as shown in Fig. 1.

O indicates a slide or block, which is adapted to slide freely along the rod or bar A, and which is provided with a tension wheel or pulley D, about which the driving-band passes. This pulley or wheel D is composed of awooden body f and a bushing or bearin g g of vulcanized fiber, as indicated in Fig. 3, the use of the fiber avoiding the necessity of oiling the bearing frequently. This is a matter of importance in machines of this charac ter where the danger of fire from heated journals is increased by the presence of lintdust, which soon covers the device.

Secured to the under side of the bar A by a binding-screw T is a bracket E, in which is journaled a drum F, the drum being advisably, though not necessarily, made hollow to receive a spring G, connected at one end to the drum and at the other end to the drum shaft or axle II. The drum is designed to rotate independently of the shaft II, which latteris held against rotation (except as hereinafter stated) by means of a pawl I, secured to the bracket and engaging a ratchet-wheel J, secured upon the shaft or axle, the pawl being held in engagement with the ratchet by means of a spring K. The shaft is provided with a milled head 71., by which-it may be turned; or it may be fitted to receive a removable key, the latter being the plan adopted in practice.

L indicates a flexible band or cord, which is secured at one end to the slide 0 and at the other end to the drum, the cord or band passing around the small wheel 6, as shown in Fig. 1, so that as the slide moves along the bar the cord or band will wind and unwind from the drum.

When there is considerable moisture in the atmosphere, the drivingband will shorten and the slide and its pulley will move toward the outer end of the bar; but when the atmosphere is devoid of moisture the drivingband will lengthen and the spring will return the slide and its pulley to the inner end of the bar. As the slide thus moves back and forth and the cord or band is wound upon and unwound from the drum, the spring, which is always under tension, will return the slide and the tension-pulley to their normal position. The shaft may be turned so as to increase or decrease the tension of the spring", thereby adapting the device to machines varying; in the number of spindles employed. This latter feature is a matter of considerable importance.

No broad claim is made hereinto the inclined supports for the slide, as that forms the subject-matter of an application filed by me March 6, 1889, Serial No. 302,149.

Having thus described my invention, What I claim is- 1. I11 combination with a bar, a slide and its tension-pulley, a bracket secured to the under side of the bar, a spring-actuated druni mounted in the bracket, an idler, and a connection between the drum and slide passing about the idler.

2. In combination with a bar, a slide provided with a pulley D, a spring-actuated drum, a cord or connection L and block B, provided with arm (1 and wheel 6, and-means a drum F, mounted loosely upon the shaft, a'

spring G, secured at opposite ends to the shaft and drum, spring-actuated pawl I, a slide 0, working on the bar and provided with a tension-pulley, an idler, and a band L, secured at one end to the drum and at the other end to the slide and passing about the idler.

In witness whereof I hereunto set my hand in the presence of two witnesses.

CHARLES \V. JONES. W'itnesses:

H. G. HART, WM. R. BETHELL. 

